RCA Radiotron 6K7 Tube, Tested Good

One good, used RCA 6K7 Radiotron tube, tested good at 68.  

Pre-owned tubes have been tested on a Triplett 3414 tube tester, and must test 60 or higher.

Tubes are also tested for leaks and shorts.
The test reading for each tube is in the listing.
Metal can tubes may have corrosion or pitting in the paint. This is cosmetic, and does not impact the performance of the tube.
Tubes will be packed safely and shipped quickly from Mississippi.
I have been selling on eBay for 25+ years.